US20100102578A1 - Bumper Beam - Google Patents

Bumper Beam Download PDF

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Publication number
US20100102578A1
US20100102578A1 US12/451,561 US45156108A US2010102578A1 US 20100102578 A1 US20100102578 A1 US 20100102578A1 US 45156108 A US45156108 A US 45156108A US 2010102578 A1 US2010102578 A1 US 2010102578A1
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US
United States
Prior art keywords
mountings
vehicle
profile
hat
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US12/451,561
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US7938462B2 (en
Inventor
Johan Nilsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gestamp Hardtech AB
Original Assignee
Gestamp Hardtech AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Assigned to GESTAMP HARDTECH AB reassignment GESTAMP HARDTECH AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NILSSON, JOHAN
Publication of US20100102578A1 publication Critical patent/US20100102578A1/en
Application granted granted Critical
Publication of US7938462B2 publication Critical patent/US7938462B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
    • B60R2019/1826—Structural beams therefor, e.g. shock-absorbing made of metal of high-tension steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
    • B60R2019/1873—Cellular materials

Definitions

  • the present invention relates to a bumper beam for vehicles, comprising a hat beam with a crown and side flanges, wherein the side flanges, at their ends, have mountings for attaching to the vehicle, the crown faces the vehicle, and a cover is welded to the side flanges in order to give the bumper beam a closed profile.
  • It is an object of the invention is to provide a sturdy bumper with low weight that leaves a lot of space for the design of the vehicle. This is achieved when the cover extends past the mountings, but leaves the outer portions of the hat beam open, and the crown on the open portions of the hat beam has a longitudinal indentation and a profile height that diminishes towards the ends.
  • FIG. 1 shows as an example of the invention, a bumper beam with mountings.
  • the beam is shown in perspective obliquely towards the vehicle.
  • FIG. 2 corresponds to FIG. 1 , but shows the beam fitted with an energy-absorbing foam body.
  • FIG. 3 shows the same beam obliquely from the outside and it is shown with the energy-absorbing foam body.
  • FIG. 4 is a top view of the beam with the foam body.
  • FIG. 5 is a cross section indicated with the line 5 - 5 in FIG. 4 .
  • FIG. 6 is a cross section indicated with the line 6 - 6 in FIG. 4 .
  • FIG. 7 is a cross section indicated with the line 7 - 7 in FIG. 4 .
  • FIG. 8 is an end view as indicated with the arrows 8 in FIG. 1 .
  • FIG. 9 is a perspective view of one of the two mountings that are shown on the other figures.
  • FIG. 10 is a side view of the mounting as shown in FIG. 9 .
  • the bumper beam 10 consists of a beam 11 with a hat profile, a hat beam, and a cover 17 .
  • the hat beam consists of a central flange 12 , i.e. the bottom of the profile, and two webs 13 , 14 . i.e. an upper and a lower side. The webs end with the side flanges 15 , 16 of the hat profile. The central flange and the webs constitute the crown of the hat beam.
  • the cover 17 is welded to the side flanges of the central part of the beam, and an energy absorbent body 18 , e.g. an EPP foam body, is glued to the cover. The cover gives the beam a closed profile, but leaves the ends open.
  • the mountings 20 , 21 are two mountings 20 , 21 , with which it may be fitted to structural parts of the vehicle, usually to the two side rails of the vehicle.
  • These mountings have the shape of short, standing beams with hat profiles with a central flange 22 , two webs 23 , 24 and side flanges 25 , 26 .
  • the central flange and web of a mounting form the crown of the short beam 20 as well as of the beam 21 , and it has a cut-out 27 that is adapted to the bumper beam and is welded to the bumper beam with line welds both along the two webs of the bumper beam and along its central flange.
  • the mounting may be stiffened by bending the webs as is shown.
  • the side flanges 25 , 26 of the mountings 21 , 22 have holes 28 for fixing with bolts on to the vehicle.
  • the webs 23 , 24 will thus give support with standing plates both against the bottom and the top sides of the beam 11 , and will therefore provide great resistance to any twisting of the beam. In case of collisions that strike vertically above or below the centerline of the beam, the loads of the collision will impart a torque on the beam that will effectively be counteracted by the mountings.
  • the bumper beam 11 has a varied hat profile along its length.
  • the profile height is at its tallest at the mountings and on a middle section 29 , the edges of the side flanges are turned up into bends 30 , 31 .
  • the side flanges have no bent edges.
  • the central flange On both sides outside the mountings 20 , 21 , the central flange has an indentation 32 , whose depth gradually increases towards the ends so that the depth of the profile lessens.
  • the cover 17 covers the mountings 20 , 21 , but not the ends outside the mountings, and the foam body 18 may end where the cover 17 ends such as is shown in FIGS. 2 and 4 .
  • the foam body can also cover the illustrated open portions of the hat beam 11 as is shown with the broken lines on FIGS. 7 and 8 , or the foam body may be omitted.
  • the part of the bumper that is between the mountings 20 , 21 is very strong because it has a closed comparatively high profile, i.e. a high profile in the horizontal plane. Outside the mountings, the height of the profile gradually decreases as is shown in FIGS. 8 and 9 , but the indentation 32 gives the result that the strength does not decrease so quickly towards the ends even though the height of the profile decreases.
  • the bumper beam according to this invention is not only to be used with the mountings shown, but can also be used for example with longer crash boxes.
  • the bumper beam shown is primarily aimed at being used as a front bumper, but the invention may also be used for a rear bumper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

A bumper beam for a vehicle has a hat shaped profile with the crown (12-14) facing the vehicle and has a cover (17) that gives the bumper beam a closed profile. The bumper beam has two mountings (20, 21) that usually are adapted to be fitted to the side rails of the vehicle. The cover is extended on both sides past the mountings, but leaves the outer portions of the hat beam open. The crown of the open open portions of the hat beam have a longitudonal indentation (32) and a profile height that decreases towards the ends.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a bumper beam for vehicles, comprising a hat beam with a crown and side flanges, wherein the side flanges, at their ends, have mountings for attaching to the vehicle, the crown faces the vehicle, and a cover is welded to the side flanges in order to give the bumper beam a closed profile.
    • OBJECTS OF THE INVENTION AND BRIEF DESCRIPTION OF THE INVENTION
  • It is an object of the invention is to provide a sturdy bumper with low weight that leaves a lot of space for the design of the vehicle. This is achieved when the cover extends past the mountings, but leaves the outer portions of the hat beam open, and the crown on the open portions of the hat beam has a longitudinal indentation and a profile height that diminishes towards the ends.
    • SHORT DESCRIPTION OF THE DRAWINGS THAT SHOW AN EMBODIMENT THE INVENTION
  • FIG. 1 shows as an example of the invention, a bumper beam with mountings. The beam is shown in perspective obliquely towards the vehicle.
  • FIG. 2 corresponds to FIG. 1, but shows the beam fitted with an energy-absorbing foam body.
  • FIG. 3 shows the same beam obliquely from the outside and it is shown with the energy-absorbing foam body.
  • FIG. 4 is a top view of the beam with the foam body.
  • FIG. 5 is a cross section indicated with the line 5-5 in FIG. 4.
  • FIG. 6 is a cross section indicated with the line 6-6 in FIG. 4.
  • FIG. 7 is a cross section indicated with the line 7-7 in FIG. 4.
  • FIG. 8 is an end view as indicated with the arrows 8 in FIG. 1.
  • FIG. 9 is a perspective view of one of the two mountings that are shown on the other figures.
  • FIG. 10 is a side view of the mounting as shown in FIG. 9.
    •  DETAILED DESCRIPTION OF THE SHOWN AND PREFERRED EMBODIMENT
  • The bumper beam 10 consists of a beam 11 with a hat profile, a hat beam, and a cover 17. The hat beam consists of a central flange 12, i.e. the bottom of the profile, and two webs 13, 14. i.e. an upper and a lower side. The webs end with the side flanges 15, 16 of the hat profile. The central flange and the webs constitute the crown of the hat beam. The cover 17 is welded to the side flanges of the central part of the beam, and an energy absorbent body 18, e.g. an EPP foam body, is glued to the cover. The cover gives the beam a closed profile, but leaves the ends open.
  • At the ends of the beam are two mountings 20, 21, with which it may be fitted to structural parts of the vehicle, usually to the two side rails of the vehicle. These mountings have the shape of short, standing beams with hat profiles with a central flange 22, two webs 23, 24 and side flanges 25, 26. The central flange and web of a mounting form the crown of the short beam 20 as well as of the beam 21, and it has a cut-out 27 that is adapted to the bumper beam and is welded to the bumper beam with line welds both along the two webs of the bumper beam and along its central flange. The mounting may be stiffened by bending the webs as is shown. The side flanges 25, 26 of the mountings 21, 22, have holes 28 for fixing with bolts on to the vehicle. The webs 23, 24 will thus give support with standing plates both against the bottom and the top sides of the beam 11, and will therefore provide great resistance to any twisting of the beam. In case of collisions that strike vertically above or below the centerline of the beam, the loads of the collision will impart a torque on the beam that will effectively be counteracted by the mountings.
  • The bumper beam 11 has a varied hat profile along its length. The profile height is at its tallest at the mountings and on a middle section 29, the edges of the side flanges are turned up into bends 30, 31. At the mountings where the profile is high, the side flanges have no bent edges. On both sides outside the mountings 20, 21, the central flange has an indentation 32, whose depth gradually increases towards the ends so that the depth of the profile lessens. The cover 17 covers the mountings 20, 21, but not the ends outside the mountings, and the foam body 18 may end where the cover 17 ends such as is shown in FIGS. 2 and 4. Alternatively, the foam body can also cover the illustrated open portions of the hat beam 11 as is shown with the broken lines on FIGS. 7 and 8, or the foam body may be omitted.
  • The part of the bumper that is between the mountings 20, 21 is very strong because it has a closed comparatively high profile, i.e. a high profile in the horizontal plane. Outside the mountings, the height of the profile gradually decreases as is shown in FIGS. 8 and 9, but the indentation 32 gives the result that the strength does not decrease so quickly towards the ends even though the height of the profile decreases. The bumper beam according to this invention is not only to be used with the mountings shown, but can also be used for example with longer crash boxes.
  • The bumper beam shown is primarily aimed at being used as a front bumper, but the invention may also be used for a rear bumper.

Claims (1)

1. A bumper beam for vehicles, comprising a hat beam with a crown (12, 13, 14) and side flanges (15, 16), wherein the side flanges, at their ends, have mountings for attaching to the vehicle, the crown faces the vehicle, and a cover (17) is welded to the side flanges in order to give the bumper a closed profile,
characterised in
that the cover (17) extends past the mountings, but leaves the outer portions of the hat beam open, and the crown of the open portions of the hat beam has a longitudinal indentation (32) and a profile height that diminishes towards the ends.
US12/451,561 2007-05-30 2008-05-09 Bumper beam Active US7938462B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE0701297A SE0701297L (en) 2007-05-30 2007-05-30 Bumper beam
SE0701297 2007-05-30
SE0701297.4 2007-05-30
PCT/SE2008/000316 WO2008147277A1 (en) 2007-05-30 2008-05-09 A bumper beam

Publications (2)

Publication Number Publication Date
US20100102578A1 true US20100102578A1 (en) 2010-04-29
US7938462B2 US7938462B2 (en) 2011-05-10

Family

ID=39967351

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/451,561 Active US7938462B2 (en) 2007-05-30 2008-05-09 Bumper beam

Country Status (3)

Country Link
US (1) US7938462B2 (en)
SE (1) SE0701297L (en)
WO (1) WO2008147277A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090160204A1 (en) * 2007-12-21 2009-06-25 Brian Joseph Czopek Corner energy absorber and bumper system
US20090295177A1 (en) * 2006-08-15 2009-12-03 Mattias Asplund Bumper beam
US20160137150A1 (en) * 2013-08-07 2016-05-19 Magna International Inc. Vehicle Body Component

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008059750B4 (en) * 2008-12-01 2017-08-31 Benteler Automobiltechnik Gmbh bumper
US8328251B2 (en) * 2010-12-17 2012-12-11 Sabic Innovative Plastics Ip B.V. Asymmetric energy absorber and method of making and using the same
US10005408B2 (en) 2011-11-03 2018-06-26 Sabic Global Technologies B.V. Energy absorbing system for conflicting regulatory requirements for vehicle bumpers
CN103008953B (en) * 2012-12-18 2015-03-04 重庆大东汽车配件有限公司 Welding tool for front collision transverse beam of automobile
CN103737355A (en) * 2013-12-20 2014-04-23 柳州市永信机械配件制造有限公司 Positioning plate with double connecting plates
USD776022S1 (en) * 2014-07-25 2017-01-10 Sabic Global Technologies B.V. Vehicle rail extension
USD779397S1 (en) * 2015-04-29 2017-02-21 Sabic Global Technologies B.V. Extension for an energy absorber
USD820749S1 (en) 2015-12-29 2018-06-19 Sabic Global Technologies B.V. Roof component for a motor vehicle
US11283395B2 (en) 2018-03-23 2022-03-22 Nextracker Inc. Multiple actuator system for solar tracker
US11387771B2 (en) 2018-06-07 2022-07-12 Nextracker Llc Helical actuator system for solar tracker
US11050383B2 (en) 2019-05-21 2021-06-29 Nextracker Inc Radial cam helix with 0 degree stow for solar tracker

Citations (7)

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US20020008779A1 (en) * 2000-05-18 2002-01-24 Samsung Electronics Co., Ltd. Audio/video system and function-extending module therefor
US6814381B1 (en) * 2001-02-21 2004-11-09 Alcan Technology & Management Ltd. Vehicle with bumper and deformation element
US20060139364A1 (en) * 2004-12-29 2006-06-29 Samsung Electronics Co., Ltd. Image processing device, portable information processing device and controlling method thereof
US20070102942A1 (en) * 2003-12-08 2007-05-10 Per Muskos Bumper beam and a vehicle with such a beam
US20070176438A1 (en) * 2004-02-25 2007-08-02 Simon Tornberg A bumper beam for a vehicle
US20090085362A1 (en) * 2007-10-01 2009-04-02 Mazda Motor Corporation Vehicle structure for automobile
US20100148526A1 (en) * 2005-09-23 2010-06-17 Lars Karlander Crash Box and a Method of Fastening a Bumper Beam

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE509041C2 (en) 1997-10-23 1998-11-30 Ssab Hardtech Ab Vehicle impact protection beam
SE519503C2 (en) 2000-11-10 2003-03-04 Ssab Hardtech Ab Bumper rail
DE10327008B3 (en) * 2003-06-12 2005-01-13 Benteler Automobiltechnik Gmbh Bumper for a motor vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020008779A1 (en) * 2000-05-18 2002-01-24 Samsung Electronics Co., Ltd. Audio/video system and function-extending module therefor
US6814381B1 (en) * 2001-02-21 2004-11-09 Alcan Technology & Management Ltd. Vehicle with bumper and deformation element
US20070102942A1 (en) * 2003-12-08 2007-05-10 Per Muskos Bumper beam and a vehicle with such a beam
US20070176438A1 (en) * 2004-02-25 2007-08-02 Simon Tornberg A bumper beam for a vehicle
US20060139364A1 (en) * 2004-12-29 2006-06-29 Samsung Electronics Co., Ltd. Image processing device, portable information processing device and controlling method thereof
US20100148526A1 (en) * 2005-09-23 2010-06-17 Lars Karlander Crash Box and a Method of Fastening a Bumper Beam
US20090085362A1 (en) * 2007-10-01 2009-04-02 Mazda Motor Corporation Vehicle structure for automobile

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090295177A1 (en) * 2006-08-15 2009-12-03 Mattias Asplund Bumper beam
US10093254B2 (en) * 2006-08-15 2018-10-09 Gestamp Hardtech Ab Bumper beam
US20090160204A1 (en) * 2007-12-21 2009-06-25 Brian Joseph Czopek Corner energy absorber and bumper system
US8505990B2 (en) * 2007-12-21 2013-08-13 Sabic Innovative Plastics Ip B.V. Corner energy absorber and bumper system
US20160137150A1 (en) * 2013-08-07 2016-05-19 Magna International Inc. Vehicle Body Component
US9873397B2 (en) * 2013-08-07 2018-01-23 Magna International Inc. Vehicle body component

Also Published As

Publication number Publication date
US7938462B2 (en) 2011-05-10
SE531020C2 (en) 2008-11-18
SE0701297L (en) 2008-11-18
WO2008147277A1 (en) 2008-12-04

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